EP 2880593 B1 20160907 - METHOD AND APPARATUS FOR IMPROVING RECEPTION OF AN RFID TAG RESPONSE
Title (en)
METHOD AND APPARATUS FOR IMPROVING RECEPTION OF AN RFID TAG RESPONSE
Title (de)
VERFAHREN UND VORRICHTUNG ZUM VERBESSERN DES EMPFANGS EINER RFID-TAG-REAKTION
Title (fr)
PROCÉDÉ ET APPAREIL AMÉLIORANT LA RÉCEPTION D'UNE RÉPONSE D'ÉTIQUETTE RFID
Publication
Application
Priority
- US 201213563010 A 20120731
- US 2013048875 W 20130701
Abstract (en)
[origin: US2014035731A1] A method and apparatus for improving reception of responsive RFID signals is provided. The method includes transmitting a plurality of interrogation signals each having a different polarization to activate one or more RFID tags. Responsive signals from the RFID tags are analyzed for receive symbol quality data to select a transmit polarization subset. These polarizations are then used for transmitting further interrogation signals to the RFID tags. The apparatus includes a dual element orthogonal radiator coupled to a transmitter and receiver. A processor controls the transmitter and receiver to transmit a series of RFID interrogation signals each having a different polarization, and receive a series of responsive signals from one or more RFID tags. The responsive signals are analyzed to select a particular a transmit polarization subset that will improve reception of future responsive signals from the RFID tags.
IPC 8 full level
CPC (source: EP KR US)
G06K 7/0008 (2013.01 - EP KR US); G06K 7/10356 (2013.01 - EP KR US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
US 2014035731 A1 20140206; US 9000894 B2 20150407; EP 2880593 A1 20150610; EP 2880593 B1 20160907; JP 2015530643 A 20151015; JP 6173454 B2 20170802; KR 101623323 B1 20160520; KR 20150034748 A 20150403; WO 2014022048 A1 20140206
DOCDB simple family (application)
US 201213563010 A 20120731; EP 13741907 A 20130701; JP 2015525431 A 20130701; KR 20157002579 A 20130701; US 2013048875 W 20130701